Hey
I have a Kahuna Big Stick and it works fine and my board is 46in long and I have seen others on smaller sized boards as well. Show us a pic of your board, I am wanting to buy another one soon once stock comes in, looking at a Land Yachtz 40in double drop board. There are fixed or adjustable sticks and carbon or Aluminium like mine.

its great for keeping my balance up and shoulder strength and leg strength, it's also great fun.

I got the 187 pads and a Triple 8 helmet which is really comfortable, got Wrist guards too which have saved me once already. Fell off once and got road burn just before my pads arrived, not a lot of fun and I got padded shorts as well to protect the hip, sit bone area.