PetSafe Anti-Tracking Litter Mat - Traps Crystal and Clay Clumping Cat Litter - Durable Mesh Material - Easy to Clean Mat - Compatible with All Cat Litter Boxes - Small Size - ALL LITTER TYPES: Works with clay, crystal, and all alternative types of litter - NO MORE MESSY FLOORS: The plastic mesh and deep grooves of the pattern trap litter as your cat leaves her litter box to help prevent messy floors - LEAKPROOF PROTECTION: Double layer backing protects floors against leaks - EASY TO CLEAN: Simply shake or use vacuum attachment to clean - BPA FREE: Made with safe materials for your peace of mind - MULTIPLE SIZES: Small is 20.5 in x 19.7 in; designed for full coverage under litter box - U.S.-BASED CUSTOMER CARE: Our pet product experts are here to help you and your pet and are available by phone, email or chat if you have any questions - QUALITY PROMISE: PetSafe brand has been a trusted global leader in pet behavior, containment and lifestyle innovations since 1998 to help keep your pet healthy, safe and happy .