Durable, heavy duty and made in the USA. These cups will give you years and years of service. They are freeze resistant and will withstand very extreme temperatures. Easy to attach to any wire. The 8 oz. is 3 1/4 in. wide x 2 1/4 in. high. The 16 oz. is 3 3/4 in. wide x 2 1/2 in. deep. The 32 oz. is kidney shaped and 8 in. wide x 2 1/4 in. deep. The 64 oz. is 7 1/4 in. x 4 in. high. Heavy Duty Cage Cups 8oz (CUP)