Materials: This thing is made out of fanicer materials then most bikes

The pressure of the escaping air forces the particles into the opening

The pump is capable of reaching pressures of up to 300psi

Ball end on the long shaft

Integrated (IS) – 9mm or 15mm Top

iXS Hack Evo Youth Knee Pads - XS - Black PLP|Model Year Materials: This thing is madeThe iXS Hack Evo Youth Knee Pads are a terrific option for young riders starting to push their limits. The Hack series combines the characteristics from the Flow and Carve series, but in a trimmed down, cost effective manner. Being a 'soft protector' without a hardshell the Hack Evo Youth Knee Pads are lightweight and extremely comfortable. Who's this item for: Young or petite riders who are in need of knee protection that can still be pedalled in.