Mentor 1840.0021 Control Knob 3.8mm - Red

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

Button - A round or square object used for fastening clothing or other items

button - A small fastener used on clothing to secure two pieces of fabric together.

Red - One of the three primary colours

Rapid have established themselves as a leading online supplier of electrical products, cables, tools, electrical components and educational resources. Through their website you can purchase a variety of meters and resistors, batteries, electrical sockets, fuses and circuit breakers, communications cables, miniature power tools, small hand tools, rivets, tapes and adhesives, office equipment and educational books and equipment. As well as selling to the general public their extensive product selections means they also sell to trade customers. They also have great links with educational customers supplying products to many schools, colleges and universities. They also offer a great turnaround on delivery meaning that your products can be with you the very next day. Some of the top brands that they stock include Recom, Draper, Bosch, Hammond, Duracell, Kingbright, Arcol and Neutrik.