Tips:1：The punch needle length can not be adjusted.2：The pinhole diameter is approx 4mm/0.25 inch,suitable for yarn,not for embroidery floss.3：Punch needle is relatively big in diameter, suitable for loosely woven cloth,not for tightly starched fabric.4：Pointed items, please use it safely and keep it away from kids.Specification:Material:Wood + CopperSeason: Spring, Summer, Fall, Winter.Package Included:1 x punch needle1 x natural 11 by 11-inch monks cloth for punch needle1 x mini threader1 x long wire threader1 x embroirdery hook (5 inch)Size Charts:Punch needle diameter:6mm/0.24inchPinhole dianeter:4mm/0.25inchPunch needle length:6 inchHandle length:4.4 inchPlease Note:1. Please allow 1-3cm error due tomanual measurement.2. Please understand that colors mayexist chromatic aberration. Thanks for understanding!