This is terrifically useful and beautiful kitchen tool. 16 large test tubes with real cork stoppers in a CNC cut baltic birch base. The 8"H x 1-1/2"W test tubes hold up to 5 ounces of spices and are made of lab-grade borosilicate glass. The rack can either be on display in your kitchen or else get stored in a cupboard and repositioned for cooking. The rack comes with round labels sized for the cork stoppers.