I think the njoy pure's handle might get in the way.
I have a list of butt plugs that I have been looking at trying for long term wear. I've done a LOT of review reading and I've limited it down to these:
Velvet plush Teaser/Pleaser
Velvet Plush Rippler
(Those two have been heavily recommended because of their material... the reviews have been startlingly positive.)
Royal Ripple (if you want to try glass)
Jolly Jack (if you want something like anal beads)
Love Pacifier Advanced (the ring folds under you and it's weighted)
I hope this helps. Happy buttplug searching!!