If you're anything like us, having multiple bikes with multiple axle types has turned into quite the headache. Keeping up with industry standards and be a real pain, on both your brain, and your wallet. The Park Tool 1728 TA Sliding Thru Axle Adapter allows you to convert any PRS 20, PRS 21, or PRS 23 repair stand to accept 15mm and 20mm thru axle wheeled bikes.The Thru Axle Adapter is made from heavy duty steel to maximize longevity, while the durable, and unmistakable Park Tool blue finish looks great. One side is for 15mm axles, and the other side is for 20mm axles. You'll use the axle that comes with your fork to secure the bike in the Park Tool Thru Axle Adapter.