Contigo Cleaning Brushes, Set of 3 3-Piece set is compatible with all CONTIGO travel mugs, water bottles and kids cups 3-Piece brush set contains bottle brush, straw brush and lid brush All brushes are top-rack dishwasher safe Brushes feature ergonomically-designed handles with durable, non-abrasive bristles Perfectly designed for all of you CONTIGO cleaning needs Lifetime Warranty