Thank you for viewing. MINOURA FG 540 Hybrid Roller (Indoor bicycle training machine) Made of aluminum for durability. For more details, please see the MINOURA website or reviews from others. I believe I purchased it about 10 years ago. I was young and used it frequently when I first bought it, but I haven't ridden my bike much in the last 5-6 years, so I'm putting it up for sale. I think there are no problems with its use, but it is used, so please check the photos and ask any questions you may have. I will answer them as best I can. Since it is used, please refrain from claims. As for soundproofing, I used sponge mats purchased from a 100-yen shop. The effect is tremendous. When getting on the bike, it's about 13cm off the ground, so I used a small step stool to get on. Thank you for reading to the end.