Specification:
Condition: 100% New
Brand: Risk Material: Aluminum Alloy
Color: black, red (optional).
For frame head tube upper and lower diameter: 34 mm / 1.3 inch
Fits fork: 1 1/8" (28.6mm) straight steerer fork
Height: 14 + 12 = 26 mm
Dimensions: approx. 4.5 x 4.5cm / 1.8 x 1.8 inch
Weight: approx. 116g

Packing list:
1 bike helmet.

Note:
Please note that the new type and old type of this product will be sent randomly, and make sure you don't mind before ordering.