I bought it in store and don't see it on their site...
The hooks are sort of like this, but dual single hooks rather than a double hook (although the double would work fine if balanced properly):
Not sure what youre going for or have looked at. This might be way off, but i looked up 'j hook' and these are pretty nice id buy 2 of them.
Paste what you were looking at... maybe thatll help narrow it down.
If you have a garage, the simplest way is a couple of these bike hooks, of course I only used them for like 2-3 sticks at a time, but I imagine there'd be larger hooks you could use.
https://www.amazon.com/gp/product/B0050PLCUW/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
I bought two of these. I'd also reccomend getting small furniture pads to attach to the wall otherwise your rear wheels will leave a wonderful black spot on your wall.
These are hands down the easiest and best way to hang the board. If you wanted to build some fancy charging station around these hooks that would be easy enough.
I like these: https://amazon.com/gp/product/B0050PLCUW/
I got one if these from home Depot, and it works pretty great.
FTFY
Unfortunately those hooks are £53 each here. �� https://www.amazon.co.uk/dp/B0050PLCUW/ref=cm_sw_r_cp_api_KdIbzbZZ0R2WS
I used this until I got mine. Not the prettiest, but it works.
Tornado 00520 Large J-Hook https://www.amazon.com/dp/B0050PLCUW/ref=cm_sw_r_cp_apa_ommryb6GKKK7C
It's a garage ladder hook lol
It's 2x Tornado Large J-Hook - https://www.amazon.com/gp/product/B0050PLCUW/ref=oh_aui_detailpage_o08_s01?ie=UTF8&psc=1
Matches the board perfectly and is pretty sturdy.
They look like these hooks http://www.amazon.com/gp/product/B0050PLCUW
I believe you would want these ones instead in order to fit the wheels: http://www.amazon.com/gp/product/B0050PLCUW