The 37-40.5 Step Up Ring by Bower is a high-quality accessory designed for photography enthusiasts. This step-up ring allows you to attach a 40.5mm filter or lens to a camera with a 37mm thread. Made with durable materials, this ring provides a secure and reliable connection, ensuring your lens and filter stay in place during use. The Bower 37-40.5 Step Up Ring is a must-have tool for photographers looking to expand their lens compatibility and achieve creative effects with different filters. Upgrade your photography gear with this precision-engineered step-up ring from Bower today.