Connector for child safety seat

A tether strap and connector combination is connected between an upper part of the backrest of a safety seat and an anchorage location in a vehicle. The connector has a first connector part (24) adapted to be secured to the vehicle and a second connector part (26) adapted to releasably engage with the first connector part (24). A tether strap (28) connects the second connector part (26) to the backrest. The second connector part (26) is attached to the tether strap (28) by energy-absorbing means (40, 49, 51).