Best Test Tubes Holder

5pcs Spring Steel Test Tube Clip Clamp Labs with Finger Grips Stoddard Laboratory Experiment Testing Holder Tool,14.5cm / 5.7inch

Quality plated steel wire test tube holder, exquisite workmanship, not easy to rust..
Finger grips make use comfortable and secure,It can protect your hand when doing a experiment..
A spring-action self-closing mechanism to ensure a safe hold with correct pressure..
The maximum diameter test tube that can hold is less than 5 cm. Fit for: 5-40mm tube..
The test tube holder is used to hold test tubes when they are hot and untouchable..

Material: Made of high quality plastic material,safe,durable and sturdy.
Size: The tube: 29mm x 120mm,volume: 50ml,hole diameter of test tubes rack: 31mm,25 holes.
Screw caps: The cap can be closely screwed to the centrifuge tube which has great performance of sealing and prevent liquid leaking effectively.
Detachable centrifuge tubes rack: Please be CAREFUL when installing the test tube rack on account of the test tube holder is a little fragile.
Suitable scene: It is not only ideal for scientific experiments and storing beads,spices,liquids,seeds and more,but also can be used for mixing drinks to decorate Halloween,Christmas and theme parties perfectly.

... Decor: Minimalistic look is suitable for most of the plant cuttings, likes pothos, lucky bamboo, African violet, coin grass, moss, flower even herbs. It will more beautiful and attractive if you fill the bottle with colored water or put some cobbles into it..
Size: Wooden holder: 14.2'' L X 1.8'' W X 0.6'' H.
the height between the two wooden holder is 9.7'', total height is 35'', Test tube: diameter is 1'', height is 4.3''. The test tube glass planter can be easily removed to change water or clean. Note: No plants or props included in this item!.
Package Includes: 1 X three tiered wooden frame, 15 x 4.3'' test tubes, 1 x cleaning brush. If the received product is not balanced, adjust the rope according to the instructions to rebalance. Mkono is a registered trademark and our product is professional manufacturing and sole selling..

Quantity: 50pcs plastic test tubes with red caps, size 16*100, 1 pack blue plastic test tube rack, easy to assemble.
Material: Made of high quality plastic, sturdy and durable, when do some pretty basic experiments and this avoids the whole broken glass issue.
Sealing: The plastic tubes with a tight fitting cap, no rough edges, have a good seal, good for storing candies or gamballs.
Test tube holder is ideal for laboratory testing and use in food and beverage service, dishwasher safe and temperature to 250°F.
Diverse use: Suitable for storage of jewelry seed beads, powder, spice, liquid, samples and specimens etc, used these plastic vials for candy, science projects and growing projects in classrooms, perfect as shot glasses in Breaking Bad themed birthday party favors.

Use glass test tubes to store candy, powder, liquid, bath salt or propagation tubes to grow plants, then place the test tubes on a sturdy acrylic test tube rack.Convenient for your storage, decoration and display.
When you want to decorate furniture or hold parties, transparent glass test tubes will add luster to your home.
24pcs 25×150mm glass test tubes with cork stoppers | a brush with a diameter of 25mm.
Material: Heat-resistant borosilicate glass tubes and sealed repeatedly cork,Nylon wire brush.

Material - plastic frozen test tubes are made from PP with smooth wall and good transparency. 10ml capacity frozen tubes with clear 1-10ml scale can easy reading of the liquid volume..
Value package - one pack with 15 pieces plastic frozen test tubes in 10ml capacity with clear screw caps,sufficient quantity can meet school, scientific laboratory usages and replacements..
Size - plastic cryogenic vial measure about height 95mm/3.74", bottom diameter 15mm/0.6", capacity 10ml/0.35oz with clear 1-10ml scale..
Design - plastic frozen test tubes designed with self standing, will not slide when using. Each frozen tubes comes with a pieces black gasket, combine with screw sealing cap can make cryogenic vial will not volatilize samples..
Wide usage - cryogenic vial test tubes are perfect for lab sample storage. Plastic frozen test tubes with smooth side wall and can placed under -80℃ to refrigerate samples, ideal for schools, scientific research laboratory and etc..

Quantity:You will receive 50 pieces of clear plastic test tubes with 1 tubes rack in each package,it is enough for you to use them..
Size:Each test tube measures 4.3 x 0.7 inch,the tubes rack measures 9.8 x 4.3 x 2.5 inch..
Material:The test tube set is made of clear plastic,sturdy and durable.You can do some basic experiments with it..
Caps and rack:Each test tube was designed with a cap,and the cap can prevent liquid leakage.The tubes rack has 50 holes to store all the test tubes and three levels of partitions,and it is removable..
Application:These transparent test tubes can be used for scientific experiments,samples,candy,plants,beads,powder,liquid storage,party decor..

The Rapid Response Fentanyl (FYL) Forensic Test Kit detects for the presence of Fentanyl/Norfentanyl in liquid and powder substances at the cut-off concentration of 200 ng/mL. It is specific for Fentanyl screening with no significant cross reactivity to other opiates, such as Morphine and Heroin..
Interpretation of test results are: positive (one line), negative (two lines), invalid (no lines or no control line)..
Kit contains: 5 Fentanyl test strips, 5 swabs, 5 test tubes, 5 bottles of extraction liquid, a test tube holder, instructions and product insert..
The Rapid Response Fentanyl (FYL) Forensic Test Kit is able to detect Fentanyl and many other Fentanyl analogues such as Carfentanil, Acetyl Fentanyl, Butyryl Fentanyl, Remifentanil, Ocfentanil, Sufentanil, p-Fluoro Fentanyl, Furanyl Fentanyl, Valeryl Fentanyl, and 3-Methyl Fentanyl..
Accuracy: > 98%, Time to result: 5 minutes..