Package of 8 Real Slate Slab Coasters Tied with Decorative Jute String Package of 8 Real Slate Slab Coasters Tied with Decorative Jute String Measures: 4 Can be used to make a candy buffet sign or even as table number sign for your wedding, party or special event. Would also make a unique holiday ornament Slate will have chipped edges and not two will be identical.