These high quality cardboard cores are made in America with 95% recycled materials. They have a rigid 1/8" thick wall and can be used for various applications including label rewind and arts & crafts. These cores inner diameter cores are available in the following widths: 0.5" (50 Cores per case) 0.625" (50 Cores per case) 0.75 (50 Cores per case) 1" (50 Cores per case) 1.1875" (50 Cores per case) 1.25" (50 Cores per case) 1.375" (50 Cores per case) 1.5" (50 Cores per case) 1.625" (50 Cores per case) 2.125" (50 Cores per case) 3.125" (40 Cores per case) 4.125" (30 Cores per case) 5.125" (25 Cores per case) 6.125" (20 Cores per case) 8.125" (20 Cores per case)