Durable and light weight these magnetic counters emulate the original counters and best of all they're two-sided! Each counter is 7/8" or 23 mm in diameter. Counters will adhere to metal surfaces on both sides. Provide an excellent tool for counting and sorting, and can model concepts from sorting to probability. Perfect for classroom demonstration or for individual use on magnetic boards. Each pack includes 200 counters. Sold as 2 packs for a total of 400 counters.