foamrush 3" h x 6" d x48 l premium quality high density half moon, semi-roll bolster cushion replacement (pressure relief for side, back, stomach sleepers to reduce joint stress) made in usa foamrush foamrush's semi-roll bolster pillow is a must-have for back, side and stomach sleepers. it is custom designed to allow support for knee, lower back, hip, ankle, wrist and neck. do not settle for anything less, grab foamrush's half-moon bolster insert today! eturn policy: there is a 50% retocking on all returned items.