Description Adopting great quality material, which lets you use it for a very long time. Though simple in design, it' s so practical when you use it. The excellent workmanship of our product will bring you a good experience. Easy and convenient to install and use, a very useful mouse restrainer. Features- Color: Transparent.- Size: 11. 00X6. 00X5. 00cm/ 4. 32X2. 36X1. 97 inch.- Material: Acrylic.- Applicable to the abdominal and tail vein injection experiments of 25- 50 gram mice.- Transparent organic glass is used for easy observation. Remove the sliding plug on the fixed cylinder at any time.- Hold the tail of the mouse and put the mouse into the cylinder. Install the front sliding plug.- Put the tail of the mouse into the lower mouth of the back cover.- Adjust the front sliding plug to give a comfortable space to the mouse, then tighten.- Color: As Shown.- Size: 11X6CM. Package Including 1 x Mouse Restrainer