Product Name: TENGA MEN'S LOUPE Men's Loupe - 1 box (new, unused) Sperm observation kit for smartphones As a first step to understanding your body before worrying about trying to conceive or infertility, you can check your condition with a sperm observation kit. 1 box: Can be used for 4 observations. Magnification: 550x * Although the lens itself has an optical performance of approximately 550x magnification, the actual appearance varies depending on the camera performance and LCD performance of your smartphone. Product size: (Width x Depth x Height) 113 x 21 x 127 mm Weight: 40g