What's in the box:

4pcs Sharpening Stones Honing Stone Grindstone Sharpener Whetstone with Balancer for Lawn Mower Tractor Garden Yard Tools (Standard)

Features:
Designed to sharpen the cutting-blade of lawn mower, tractor and other garden tools.
Simple structure can fit power drills and manual drills, easy to install, convenient to use.
Premium quality, practical and durable to use.
The metal plate under the stone ensures safer operation than plastic one and provides longer service life.
The balancer is made of ABS,durable and strong, which can easily show if the cutting-blade is balanced.

Specifications:
Material: Corundum
Quantity: 4pcs
Item Size: 5 * 5.5 * 5cm / 1.96 * 2.16 * 1.96in
Item Weight: 350g / 12.34oz

Packing List:
4 * Sharpening Stone
1 *Balancer