Everlast Professional Gym Timer Excellent digital countdown timer that is ideal for individual or gym use Round length can be set from 30 seconds to 9 minutes for every boxing, MMA, grappling, aerobic and athletic workout Rest time can be adjusted from 30 seconds to 5 minutes Super Large 2" digital display can be seen easily Size: 8" L x 3" W x 8" H (Timer is compatible with 110v)