When I first received the product, the bearing was not tightened all the way through for the rollers. This meant the rollers would turn both ways. After tightening the rollers, they are now snug on one end and roll only one way as they should. Very pleased with the quality and accuracy of the product.

When I first received the product, the bearing was not tightened all the way through for the rollers. This meant the rollers would turn both ways. After tightening the rollers, they are now snug on one end and roll only one way as they should. Very pleased with the quality and accuracy of the product.

When I first received the product, the bearing was not tightened all the way through for the rollers. This meant the rollers would turn both ways. After tightening the rollers, they are now snug on one end and roll only one way as they should. Very pleased with the quality and accuracy of the product.

It is made of good quality, well-crafted material. There is a pair in a box. The wheels can only rotate in one direction and thus prevent jumping back.

It is made of good quality, well-crafted material. There is a pair in a box. The wheels can only rotate in one direction and thus prevent jumping back.

It is made of good quality, well-crafted material. There is a pair in a box. The wheels can only rotate in one direction and thus prevent jumping back.