VS24 PMG-DUO 24 Inch Video Slider + Carrying Case use-long-lens it also provides anti-rotation so

it also provides anti-rotation so the plate won't slip or twist

But ProMediaGear has you covered with these replacement spikes which are readily available

Flat Top Apex replacement

the custom camera plate helps with the best camera fit too

VS24 PMG-DUO 24 Inch Video Slider + Carrying Case use-long-lens it also provides anti-rotation soThe World's First, Dual Track Slider! The body of the slider is machined out of 1 solid piece of T 6061 Aluminum and features two tracks; straight on one side and curved on the other! The carriage is designed to be moved quickly from the straight side to the curved side simply by loosening a thumbscrew.