This is the larger version of the popular ATI grapple kit, designed for utility tractors and skid steer loaders. Two independent grapples and cylinders clamp down on brush, hay, silage, mulch and just about any material you can fit in the bucket.
The unit comes with a template for marking and drilling the bucket side plates. Bolt the grapple mounting plates to the side of the bucket, cut off the excess mounting tube, and you are ready to go to work.
Note: most ATI buckets are pre-drilled to accept the side plate mounting brackets of the grapple kit.