Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Dual Mulching Blade Adapters Kits come in two options, the XB2 and the . The XB2 kit fits most dual blade commercial mowers, and the kit fits most 3 bladed commercial mowers. Blades not included The Mowing Blade Adapter Kit is designed to turn an ordinary side discharge commercial lawn mower into an ultimate grass shredder Mowing Blade Adapter clamps the stock blade and the extra mowing blade at a 90 degree angle Not only does the mowing blade adapter kit mow the lawn, it ensures that the machine's blade spindle is perfectly balanced so that there is no blade slippage, which can cause the blades to be over-torqued and virtually impossible to remove Color: As Shown Material: Metal Package Contents: 6x Dual Mulching Blade Adapters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.