The Clear SafeSip Glass and Cup Covers Pack of 4 are reusable, silicone straw holders that fit most glasses, cups or cans and prevent spills. These unique covers are ideal for adults with arthritis to use their favorite coffee mug, glass or cup and avoid spills. SafeSip Glass and Cup Covers for adults include 4 easy to use silicone lids for both hot and cold beverages. The food grade silicone covers simply stretch over the top of a drinking glass, coffee mug, or cup to create a spill-proof lid. This simple spill proof lid replaces sippy cups, making cups spill proof for users lying down to drink. The covers are lightweight, compact, simple to use, portable and reusable and fit any glass, mug, cup or can from 2.5 to 3.5 inches in diameter. SafeSip Covers help prevent spills, enable adults with arthritis to drink with dignity. Clear SafeSip Glass and Cup Covers Clear Pack of 4 Specifications: Color: Clear. Includes: 4 covers. Material: Food grade approved, platinum silicone 100% BPA free. Fits: Glasses, mugs, cups, cans from 2.5 to 3.5 inch diameter. Care: Dishwasher and microwave safe. Hot wash before use.