Gentle vibrations help soothe baby to sleep Pad slips easily under a crib mattress, stroller, or bassinet Compact, cordless convenience – portable design is great for home use or travel Includes three vibration modes and a 30-minute timer that shuts off automatically Materials: 100% Polyester front and 100% Polyethylene back, 100% Polyester filling Dimensions: 8.15 x 7.3 x 1.9 inches (207 mm (L) x 186 mm (W) x 48 mm (H) Wipe clean with a damp cloth USB-C charging cord included