Features - Special hand design, easy to hold and comfortable to use. - Traditional chinese massage tool for easy manipulation to press pressure points during reflexology on muscle stimulation for feet, legs, back, hands and arms - Enables deeper pressure transference with minimal effort - Suitable for deep tissue massage and 'knotted' sore relief Bian Stone needle characteristics: After processing out of the Stone was gray, after a period of time or rub cream or essential Oil, Stone absorbed the oil will turn black, smooth and glossy. It does not affect the use. Descriptions Material: Bian Stone needle Color: Black Size:10.7*8.8cm Conversion: 1cm=0.39inch/1 inch=2.54cm Package include:1Pcs Note: 1.Because stone products produced using natural stone, you maybe will see the product surface oil 2.Because stone products produced using natural stone, so the surface will exist more or less white or yellow stone textures, which belongs to the natural form, is not a crack. 3.Frangible Bian-Stone material ,use and placement process do not touch or scrape with a hard object.