Material: Environment ABS plastic, diamond spring and Environment Sponge 100% Brand New and high quality Dimension: 13 * 9.5 cm like to show pictures. (due to manual measurement, please understand, may be 1-2 cm error Gender: Unisex Suitable for: elderly, office crowd and sports enthusiasts and so on. Feature: Does not occupy small size space, Health is the Simple and practical sports action Unique design firm and durable Made from Solid Steel Spring with Padded Foam Handles. Ideal for strength and forearm training. Easy to use and carry. Available in Blue, Red and Orange colour. Padded Foam Handles for Comfortable Grip. Brand No Brand SKU 100508711_NP-1020864692