This clever batch of multi-use mix-and-match components gives kids as much opportunity for active play as an entire playground in any corner of your home or backyard. The portable Quad Balance Blox Slackline's four blox and four lines can be made into as many challenging, changeable courses as kids can imagine. Indoors or out, it's a really great, active, optimistic way to build skills, confidence, and a sense of adventure (maximum weight limit 125 lbs). Lines measure 5'L; blocks are braced with steel rods. Adult assembly required. Add the Balance Blox Single (two blox and one line) or/and the Balance Blox Add-On (one blox and one line) to keep the challenges coming. Add the rocking Teeter Bridge so kids can leap from slackline to teeter, totter awhile, and jump to limitless configurations of the five Hop Blox (a set of two large and three medium “stones” with rubberized bottoms that can be combined in limitless configurations with the teeter, Quad, or themselves). The triangular-shaped PlayZone Trampoline completes this indoor playground that fits so snuggly in a corner with the Balance Blox Quad! With a handle to aid in balancing while jumping, and padded covers to protect young feet from sliding into the springy bungee-cord openings, it's a great add-on to all the PlayZone playground accessories. The options for active play are as varied as the imagination (that's the real fun of it), yet the space required is minimal.