ITEM NAME:2pcs DIY FR-4 Universal Prototype Solderable PCB Circuit Board 10x22cm I9R3 2pcs DIY FR-4 Universal Prototype Solderable PCB Circuit Board 10x22cm I9R3 Product Name : Universal PCB Board Hole Dia(Approx) : 0.1mm / 0.039" Hole Pitch(Approx) : 2.54mm / 0.1" Size(Approx) : 10 x 22cm /3.9" x 8.7"(W*L); Thickness(Approx) : 1.5mm / 0.06“ Install Hole Dia : 3mm/0.12"; Install Hole Distance : 21 x 9cm/8.3" x 3.5"(L*W) Package Content : 2 x Universal PCB Board Material : Copper PCB Color : Copper Tone Design : Single Side Weight : 55g Great for building a prototype of an electronic circuit. With referencing letters printed on one side for easy reference of individual holes. Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm..Great for building a prototype of an electronic circuit. Material : Copper PCB. Color : Copper Tone. Design : Single Side. With referencing letters printed on one side for easy reference of individual holes.