Quantity:50 sets complete buttons. Size:14mm in diameter. Color: silver Material: Alloy(Cadmium Safe) Simple to attach - just insert prongs through fabric/material & fold-over; backing pieces included High Quality. Great for DIY handmade quilt accessories,bags, purses, jackets, covers etc. Highly functional magnetic fasteners - take the place of buttons and other closures. Practical solution for arthritis sufferer/limited dexterity. Laundry safe.