With 42 sizes from 14mm to 62mm available, Lighthouse coin capsules will fit virtually any size coin or medallion. Lighthouse capsules are made of extra durable, scratch resistant acrylic. They lock securely, yet are easy to open. Sold in boxes of ten capsules. Inside Diameter: 24mm Outside Diameter: 30mm Use For: US Quarter, 1 Sfr.; 1 DM; other 24mm coins and medals.