WB-102+J Solderless Breadboard with Jumpers The WB-102+J Breadboard is identical to the WB-102 except it comes with a supply of jumper wires cut to various lengths. The wires are already preformed and stripped so they are ready to go. The WB-102+J breadboard is one of our most popular items. Sold for prototyping, hobby use and especially popular with schools. Specifications 2 bus strips (distribution strips) 1 Terminal Strip 830 total contact points Dimensions: 6.5" x 2.125" ABS plastic Accepts wire sizes from 20-29AWG