CHILD PROOF BABY REINS -- Child side of our wristband comes with lock so he cant unfasten it. Parent cuff can attach to a buggy, pushchair, pram or highchair. Parent wrist link: STRONG AND LONG SPIRAL CORD -- Our baby reins stretches out a good 2.5m,which still gives your toddler the freedom to investigate. Spring back easily. The connecting coil is metal cord encased in rubber so there no change of it snapping. COMFORTABLE TO WEAR -- Wrist bands are nice and soft on your skin. 2 cushions around shoulders wont rub babys delicate skin when he wearing the sleeveless. Adjustable harness ensures not tight around his chest or waist when he has a big coat in. 2 APPLICATION -- Can either be a child safety backpack or be an anti lost wrist link. Can fully detach the reins from the harness, and attach the reins to an additional cuff, then you get a wrist link. Easy and quick to put on and don't take up much room in a bag when not in use. EASY TO PUT ON -- Anti lost wrist link: 1) Adjust length; 2) Clip it; 3) Lock the child side with a key (KEY IS INCLUDED). Child safety backpack: 1) It buckles at the back. 2) Head goes through the top and then it just clips together around them. 3) Undone on both sides to remove the harness when not in use.