Activeon am01a chest strap perfect when you want to record at a lower view point than a video taken with a head strap make your activity much more convenient adjustable to fit all sizes product description perfect when you want to take a video in a lower view point than a video taken with a head strap your activity will be much more convenient main specifications product description activeon chest strap chest support product type chest support dimensions wxdxh n172 cm x 7 cm x 125 cm