Product information:
[Name] Rock Climbing Rainbow Series Round Rope Chest Back Collar
[Material] Exclusive weave polyester
[Color] Red, blue, yellow, black, orange, purple, gray, sky blue, pink, brown and more colors are scheduled. . .
[Size] 

XS- rope size 6mm*120cm, chest and back size 1.0*30-40cm, collar size 1.0*22-33cm,

S- rope size 8mm*120cm, chest and back size 1.5*40-50cm, collar size 1.5*24-36cm,

M-rope size 10mm*120cm, chest and back size 2.0*50-60cm, neck ring size 2.0*30-50cm

L- rope size 12mm*120cm, chest and back size 2.5*60-70cm, neck ring ruler 2.5*40-60cm