Zippie TS Tilt-in-Space Folding Pediatric Wheelchair W/ Freedom Designs Seat Currently set up as 12” frame width but the TS was designed to accommodate the changes your child may experience throughout the life of the wheelchair. Up to 2″ of seat width and up to 5″ of seat depth adjustments allow the TS to grow, while adjustable components keep your child comfortable and properly positioned during development. For families needing to store the wheelchair in a vehicle or in tight spaces at home, the Folding TS compresses into a small package. The original, premier pediatric tilt-in-space wheelchair, the TS features 45° of traditional tilt technology, meaning the tilt action occurs at a fixed pivot point.