Description:

Types A, B, and C can be interspersed with drawstrings, but Type D cannot.
Helmet repair and modification accessories, with buttons, head circumference can be adjusted
Durable with plastic knobs and nylon rack pull straps
Installation method: turn the knob to the maximum head circumference range, fix the adjuster on the helmet with tape, check whether the positions of the nails and the holes are consistent, record the punching positions, then consider the installation method, cut off the excess parts, and then punch the holes , embedded in the hidden button, and finally installed
Helmets for Cycling/Skiing/Equestrian/Climbing

Specification:

Color: Black
Material: Nylon
Size: Approx.
A: Jack distance is 47mm/1.85inch
Middle fixed foot spacing: 19mm/0.75inch
B: jack distance
21mm/0.83inch
28mm/1.10inch
Middle fixed foot spacing: 10mm/0.39inch
C: Jack pitch
22mm/0.87inch
28mm/1.10inch
Middle fixed foot spacing: 10mm/0.39inch
D: Spacing between fixed feet: 10mm/0.39inch

Package Includes:

1 Piece Helmet Retention System

Note:

1. Please allow slightly error due to manual measurement.
2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
3. Wish you a wonderful on line shopping!