Our pet cots are for INDOOR & OUTDOOR - great for place training, home, camping, doggie daycare, workplace, travel, & more! LIGHT-WEIGHT & EASY to assemble & disassemble - NO TOOLS REQUIRED! Replacement parts are also available, including Dolly Kits (legs w/wheels) - TRAINERS & RETAILERS, make storing your stack of cots mobile. We also offer NON-SKID RUBBER LEG TIPS. The rubber tip are easily slid on to the bottom of your cots legs. These tips help prevent your cot from sliding across any smooth surface such as hardwood floors or tile.