Rota-Rod Treadmills MODEL MK-630B Single Lane Rota-Rod Treadmill for Rat & Mouse MK-630B is a low cost & portable single lane rota-rod treadmill and used to assess the effect of drugs, brain damage... MODEL MK-610A Rota-Rod Treadmill for Mice MK-610A is used to assess the effect of drugs, brain damage, diseases on motor-coordination or fatigue resistance. Rod i... MODEL MK-670 Rota-Rod Treadmill for Rats & Mice MK-670 is used to assess the effect of drugs, brain damage, diseases on motor-coordination or fatigue resistance. Both r...