What's in the box:

Bike Front Wheel Riser Block Quick Release Rear Wheel Skewer Chain Brush for Indoor Bike Trainer (Standard)

Features:
Plastic front wheel riser with anti-slip bottom,provides extra grip,prevents slipping easily and keeps your floor from scratches.Fits most bike tires.
Stainless steel rear wheel skewer is designed to install on your back wheel to secure your bike into trainer.Universal fitting for most rear cycle wheels with hollow axle.
Chain brush with 3-sided bristled design and long bristled end,allows you to clean your chain,crankset etc.
Good bike tools for you.

Specification:
Material: Plastic + Stainless steel
Front Wheel Riser: 250 * 160 * 60 mm / 9.8 * 6.3 * 2.4 in
Rear Wheel Skewer Length: 170 mm / 6.7 in
Chain Brush: 245 * 50 mm / 9.6 * 2.0 in
Total weight: Approx. 250 g / 8.8 oz

Package List:
1* Front Wheel Riser
1* Rear Wheel Skewer
1* Chain Brush