CNC Machined in Aluminium - Black Anodised - EU made - Precision component. Cone is 10mm dia and 20mm long+ 10mm long m8 thread to suit your speakers sub or rack. Heavy and solid. Speaker spikes are little cones that are used to separate your studio monitors or entertainment system speakers from the object theyre resting on. These spikes are shaped like cones that have a wide base and then reduce down to either a point or a ball bearing, and the purpose is to reduce the surface area of the points of contact between the speakers and the medium they are standing on. This allows sound wave (vibration) to dissipate and not traveling to the floor or speaker rack etc. Speaker spikes are legit and in conjunction with speakers spikes pads can clean up your acoustic hygiene to notice a real, and not imagined, difference. The shape and sizes of your rooms differ, and all you need is some acoustic treatment to solve it. ----- PrecisionGeek are very proud that our stainless steel and aluminium fittings are all made in-house on our own Star CNC Machines. From speaker spikes through RC parts to banjo bolts — everything is machined from solid stainless steel and other quality grade metals to exact specifications meaning that quality control is maintained throughout the manufacturing process. It means we can react to new demands, improve and assess each component and offer the best quality solution to any requirement. It also means that we can react to new products required immediately — If you feel there is a new product which we could add to our catalogue please get in touch and we will be happy to offer a quotation. All manufactured in the EU on our own machinery — Its very rare today when many items are simply bought in. We are a company that actually cuts its own metal in-house.