The "Lil" Boss Stainless Steel Double Walled Vacuum Insulated Tumbler with Crossed Racquets Tennis Design is perfect for any tennis player! The generous 20oz size keeps beverages hot for up to 6 hours or cold for up to 24 hours and the tennis motif design shows your Tennis attitude in style! Features: Acrylic push in top with sliding closure. No BPA, phthalates, lead, or other toxins. Slim design fits in most cup holders.