non-abrasive
21Eraser — For other uses, see Eraser (disambiguation). Pink erasers An eraser (US) or rubber (UK) is an article of stationery that is used for rubbing out pencil markings. Erasers have a rubbery consistency and are often white or pink, although modern… …
22Cutting board — A wooden chopping board with a chef s knife. A cutting board is a durable board on which to place material for cutting. Common is the kitchen cutting board used in preparing food; other types exist for cutting raw materials such as leather or… …
23Chamois leather — Shamy redirects here. For the pair of characters from The Big Bang Theory, see List of The Big Bang Theory characters. A Chamois leather cloth Chamois leather (   …
24soft — adjective /sɒft,sɑft,sɔft/ a) Giving way under pressure. My head sank easily into the soft pillow. b) Smooth and flexible. Polish the silver with a soft cloth to avoid scratching. Syn: non abrasive, fluffy, gentle, light …
25Bicycle brake — Animation of a single pivot side pull calliper brake for the rear wheel of a steel framed road bike. A bicycle brake is used to slow down or stop a bicycle. There have been various types of brake used throughout history, and several are still in… …
26Whiteboard — This article is about physical whiteboards. For software based whiteboards, see Whiteboarding. A blank whiteboard A whiteboard (also known by the terms markerboard, dry erase board, dry wipe board, pen board, and the misnomer greaseboard) is a… …
27RKM engine — The Rotary Piston Machine, or in its German originalRotationskolbenmaschine (R.K.M.) is a new (still in development) formof machine. It can be used either to transform pressure intorotational motion (an engine), or the converse rotationalmotion… …
28Bicycle brake systems — are used to slow down, or brake a bicycle. There have been various types through history, and several are still in use today.HistoryEarly bicycles such as the high wheeled penny farthing bikes were fitted with spoon brakes. As they were fixed… …
29Jewellery cleaning — is the practice of removing dirt from jewellery to improve its appearance. Methods and risks Maintaining a clean diamond can sometimes be difficult, as jewellery settings can obstruct cleaning efforts, and oils, grease, and other hydrophobic… …
30Purple-K — is a dry chemical fire suppression agent used in some dry powder fire extinguishers. It is the most effective dry chemical in fighting class B (flammable liquid) fires, and can be used against some energized electrical equipment fires (USA class… …
