S — length 12cm —for 1-3 years old — for the kids’ height 80-95cm  

M — length 14cm —for 3-5 years old — for the kids’ height 95-105cm

L — length 16cm —for 5-8 years old — for the kids’ height 108-120cm  

XL — length 18cm —for 9-12 years old — for the kids’ height 120-135cm  

*Manual measurement may cause a deviation of 1-2cm.

please note the white ones are not available now