Features 1.PRECISE SIZE: Phonograph conversion arm is designed with precise holes, 80mm diameter, 20mm inner hole, to ensure a snug fit and no loosening. 2.APPLICATION: Professional HiFi conversion arm plate, can be used for LP vinyl record player, old record gramophone, play the role of fixed record player. 3.PREMIUM MATERIAL: Vinyl record player special arm base, using aluminum alloy and chrome plated material, CNC anodized, exquisite sandblasting process, durable. 4.COMPACT AND LIGHTWEIGHT: This phonograph conversion arm plate is 80 x 50 x 25mm / 3.15 x 1.97 x 0.98in in size, small and light, does not take up space, easy to install. 5.REPLACEMENT: LP turntable conversion arm plate is a practical replacement part, simple black appearance, fine workmanship, can match your record player. specificationItem Type: Phonograph Conversion Arm_x000D_ Material: Aluminum Alloy, Chrome Plated_x000D_ Color: Black_x000D_ Overall Size: Approx. 80 x 50 x 25mm / 3.15 x 1.97 x 0.98in_x000D_ Diameter: Approx. 80mm/3.15in_x000D_ Inner Hole: Approx. 20mm/0.79in_x000D_ Height: Approx. 25mm/0.98in_x000D_ Model Number: Conversion Arm PackageList1 x_x000D_ _x000D_ PhonographHiFiConversionArm4 x Set Screws1 x Hole Screw1 x Hex Wrench Note1. Due to differences in monitors and lighting effects, the actual color of the item may be slightly different from the color in the picture._x000D_ 2. Due to manual measurement, please allow 0.4?0.8in measurement deviation.