Come and see our amazing products. Maximum time is 99 minutes 59 seconds, meet the need of classroom and after-school activity perfectly, great countup and countdown timer for teachers kids.Classroom timer with Strong Magnetic back 2.0 retractable stand and hook for hanging, can be positioned in variety of locations, like table, blackboard, dry erase board and wall hooks. Pls confirm with us about the packing info, stock color and exact production time before placing your order.