This commercial-grade Crayon Bounce House by Inflatable HQ is constructed from 100% PVC vinyl, from its upright pillars and beams to its slide walls. All high-stress areas including the bouncing surface, mattress sides, bottom, and slide are made from industrial strength, 18-ounce (0.55mm) PVC. This (fire retardant and lead-free) puncture-proof PVC material is approximately 5 times stronger than nylon used in lesser-quality units as it won't tear, fade, get moldy, and it's far easier to clean. Belting reinforcement is used at key stress points, & heavy-duty, multilayer stitching is used throughout. An impressive 30" tall mattress provides excellent spring force and cushioning that allows for tall leaps and comfortable landings. This bouncer's roof shields children from the sun & features a safety escape hatch that's quick and easy to exit in the event deflation occurs during a power failure. The wide, elevated front slide is a safe way to exit this bouncer rather than accidentally bouncing and falling out of the house and onto the ground. Mesh windows made from rip stop netting won't tear like cheaper mesh and they allow children to be supervised. Zippered flaps allow the bouncer to quickly be deflated and taken down for storage. Always use GCFI-protected receptacles/circuits and take caution to keep blower and power cords in dry locations. Please Note: A blower is required for use and is not included. Includes instructions, repair kit with patches, 4 oz bottle of glue, & four 12" heavy duty metal ground stakes to secure bouncer to the ground. All materials comply with the Lead Free Toys Act. Model: Pro Crayon. Grade: Premium, suitable for rental / commercial use. Capacity: Approximately 5 children (800 lbs total). Dimensions: 13' tall, base is approximately 17' x 13' (including slide exit).