The '40.5-46 Step Up' ring by Dot Line offers a convenient solution for photographers looking to adapt their lens filters or accessories with a 40.5mm diameter to a lens with a 46mm diameter. Made of high-quality materials, this step-up ring ensures a secure and precise fit, allowing for seamless attachment and removal. The 40.5-46 Step Up ring falls under the 'Step up Rings' category. Compatible with a wide range of lenses, this product is a must-have for any photographer looking to expand their creative possibilities. Trust Dot Line for reliable and efficient photography accessories.