


Tube rodent holders, horizontal/vertical
This affordable, high-quality line of rodent holders is very useful for procedures requiring access to the tail, such as simple injections and blood sampling. These tubular holders can be positioned vertically or horizontally, depending on how comfortable you are holding the rodent.
To use, remove the nosepiece and position the restraint so that the slot faces upward. Secure the rodent by the base of the tail and gently guide it into the restraint, hind legs first. Once positioned, place the nosepiece into the groove and secure with the screw.
From offered six rodent holder models, two are equipped with angled noce cones for direct inahalnt gases.
Reliable, low-cost rodent restraint for tail access procedures in laboratory research.
The Kent Scientific Tube Rodent Holders (Item # RSTR551–RSTR554) are an affordable, high-quality solution for safely restraining mice and rats during procedures that require unobstructed access to the tail — including tail vein injections, blood sampling, and other routine laboratory techniques.
How It Works
To use, simply remove the nosepiece and position the restrainer with the slit facing up. Secure the rodent by the base of the tail and gently guide it into the restrainer, hind limbs first. Once properly positioned, replace the nosepiece into the groove and tighten with the screw.
Key Features
- Cylindrical design helps prevent rodents from moving excessively, ensuring a stable position throughout the procedure.
- Adjustable nosepiece securely holds the animal in place and can be adapted to individual animal size.
- Open groove on the bottom allows easy, unobstructed access to the tail for injections and blood collection.
- Clear transparent body allows researchers to constantly observe the animal's behaviour throughout the procedure.
- Economy line — high quality at a competitive price, ideal for everyday laboratory use.
Available Sizes
Four sizes are available to accommodate a wide range of body weights — from small mice (15–30 g) up to large rats (250–500 g), with optional nose cone variants for animals in the 125–500 g range. Inside diameters range from 0.975" to 2.500", and holder lengths from 3.125" to 8.500". This ensures a secure, stress-minimising fit for virtually every common laboratory rodent.
| Item # | Model | Inside Diameter | Holder Length | Body Weight |
|---|---|---|---|---|
| RSTR551 | Restrainer for Mice 15–30 g | 0.975" (24.8 mm) | 3.125" (79.4 mm) | 15–30 g |
| RSTR552 | Restrainer for Mice & Rats 30–125 g | 1.375" (34.9 mm) | 4.875" (123.8 mm) | 30–125 g |
| RSTR553 | Restrainer for Rats 125–250 g | 2.000" (50.8 mm) | 7.250" (184.2 mm) | 125–250 g |
| RSTR554 | Restrainer for Rats 250–500 g | 2.500" (63.5 mm) | 8.500" (215.9 mm) | 250–500 g |
Models RSTR553 and RSTR554 are also available with nose cone.
Applications
- Tail vein injections
- Blood collection
- General tail-access procedures
- Routine restraint in pharmacology, toxicology, and biomedical research
- Laboratory staff training in rodent handling
Why Choose These Holders?
The clear transparent body allows researchers to constantly observe the animal's behaviour throughout the procedure. A trained rat or mouse can comfortably and quietly remain in the holder for extended periods, reducing procedural stress for both the animal and the handler.
Available Through Animalab — Authorised Kent Scientific Distributor
Animalab is the authorised distributor of Kent Scientific products in Poland and Central & Eastern Europe. We offer:
- Technical support and guidance on selecting the correct restrainer size
- Assistance with grant applications and procurement documentation
- Fast order processing and delivery to research facilities
- After-sales support and access to the full Kent Scientific product range
Request a quote — contact our team via the enquiry form or call your local Animalab office directly.
| Product name | |
|---|---|
| RSTR551 Tube rodent holder 15 to 30g, horizontal/vertical position, ID 24.76 mm x L79.38 mm | |
| RSTR552 Tube rodent holder 30 to 125g, horizontal/vertical position, ID 34.93 mm x L 123.82 mm | |
| RSTR553 Tube rodent holder, 125 to 250g, horizontal/vertical position, ID 50.8 x L 184.15 mm | |
| RSTR553N Tube rodent holder, 125 to 250g, horizontal/vertical position, ID 50.8 x L 184.15 mm, with nose cone | |
| RSTR554 Tube rodent holder, 250 to 500g, horizontal/vertical position, ID 63.5 x L 215.9 mm | |
| RSTR554N Tube rodent holder, 250 to 500g, horizontal/vertical position, ID 63.5 x L 215.9 mm, with nose cone |