Review on 🔧 Prime-Line Products B 610 Spring Tension Roller Assembly: 1" OD, Concave Edge, Steel Ball Bearing – Convenient & Durable Option by Christopher Holker

Two castors per package. A typical screen door has a total of four rollers, two on the bottom and two on the top. If you need to replace all four rolls in the screen, you need to buy "2" pieces in the quantity (quantity 2 x 2 rolls per pack = 4 rolls). These heavy-duty rollers are made of steel and roll smoothly. You can feel a small amount of grease (oil) being rubbed into these rollers, and if you shine a flashlight at the small gap between the shaft and the wheel you can see parts of some of the ball bearings they contain, which help them roll help . My original reel that came with a five year old screen door is worn out and I couldn't find it in any major store. So I took out my original rolls, measured their dimensions and compared them to the dimensions listed on the product image. That's how I knew they would work on my screen door. I would advise anyone to measure their existing casters to ensure this product will fit their door. The OEM rollers that come with the door are made of plastic (plastic roller and steel body) and break easily. The same manufacturer has nylon/plastic rollers and this product is a steel ball bearing version (the whole part is steel). I would recommend everyone to spend a few bucks more and get this steel ball bearing version. The difference in price is much less than the money you spend on gas going to and from the big hardware store. These rollers are smooth and roll easily. The screen door moves much more easily (as it should). There are videos on YouTube showing how to delete existing videos and add new ones (https://www.youtube.com/watch?v=NGihG4Q4Wbs). All you need is a Phillips screwdriver. Once you figure out how to attach it, the reels can be put back in place in 5-15 minutes (depending on how brave you are).