Rabbit restrainer for Immobilization of experiment animal is required in many pharmacological and physiological experiments. To satisfy this need, Orchid has launched different categories of optimized animal restrainers. This restrainer is designed for use in two ways: In style 1, restrainer can be used with the help of curved back acrylic plate. This curved plate has a slider at bottom which can slide in the bottom sliders on restrainers according to animal size. In style 1, both height and length are adjusted using only one plate. In style 2, restrainer, height and length both can be adjusted using two plates. One plate as a cylindrical plate for height adjustment and second plate for length adjustment. Neck can be adjusted by sliding the front top plate and fixing it in the comfortable position neck slot. The floor of restrainer is specially made rough to avoid skidding.