Padded Body Support Adjusts for Both Height and Angle! This adjustable crawler aids elementary crawling when body support is required. Its primary use is to encourage and reinforce crawling without regard for specific patterns. The child lies across the adjustable pad which supports the chest and abdomen. The support pad itself is angle-adjustable and adjusts in height from 13"-17" (33-43cm). Steel construction with leatherette support and nonmarring ball-bearing casters.