We cannot recommend this product highly enough please watch the video below as a picture really does speak a thousand words and shows exactly what would happen to a child in a 30mph collision if they have slipped their arms out of their car seat harness httpwwwyoutubecomwatchfeatureplayer embeddedampvh 0bhltehgi at last there is a simple safe solution to prevent children from slipping their arms out of their car seat harness it simply fills in the gap at the side where the ch