Each 4pc set contains two eco- friendly, 100% recyclable, dishwasher safe straws, one cleaning tool and one authentic sustainable bamboo case. Includes: 8.5 inch straight straw (6mm diameter). 8.6 inch smoothie straw (8mm diameter). 10 inch cleaning tool. 1 bamboo case. These are made from 18/8 304 food-grade (FDA) stainless steel. Each straw is engraved with LAST STRAW. Each case has "be a good human." on one side and Last Straw logo on the other. NOT recommended for children.