The Heavy Duty Nature's Sway safety spring with stainless steel swivel snap hook is made for babies that exceed 10kg.
It has what we call zero initial tension which means it will not snap shut on the re-bound thus giving your baby a much more gentle and flowing bounce. Thoroughly tested and researched to give the optimum bounce for your baby (10kg minimum to 25kg maximum). All our springs have an industrial sewn-in safety strap to protect from overstretching (maximum travel is 22 cms)
The spring is then covered with a snug fitting cotton sleeve.