tall. Suits 12- 18 inch wheel bicycle：
1. Insert bolt through the wheel, washer and training wheel arm.
2. Attach and tighten washer and nut, you will require two wrenches to tighten this property.
3. Remove rear axle nut from the bicycle wheel.
4. Insert axle though locking brace and fix the raised point to the bicycle frame ends
5. Determine desired height of training wheels when attached the training wheels should have about 0.5-1cm (1/5 to 3/5in) space from the ground.
6. Tighten axle nut with adjustable wrench.
Specification:
Material: PVC+Metal
Wheel Outer Diameter: 11.5cm/4.5inch
Wheel Inner Diameter: 9mm/0.35inch
PACKAGE INCLUDES:
1 Pair * Stabilisers for Childs Bike
2 Pieces * Shoulder Bolts
2 Pieces * Nut
2 Pieces * Washers
2 Pieces * Limit Spacers
2 Pieces * Vertical Bracket Arms
2 Pieces * Bike Grip
1 Pieces * bike Bell
1 Pieces * Wrench
NOTE：
1, please make sure the bracket arm is vertical on the ground.
2, It is not recommended to assemble on the kids bike with the wheel of 20 inch.
3, Not suitable for those with semi-horizontal or vertical dropouts.
4, Can not be Installed on Bikes with Derailleurs or transmission.