1) Power-Loc keeps us in all wall mounts really bombproof.
2) Specifically, the brush head in this toilet brush can be reordered. Here's only drawback is that Wenko indicating nowhere, which is the replacement brush heads the right. An e-mail to the company Wenko gave me then at once the answer. Unfortunately (!) I got this e-mail is no longer ... But I'm sure it's the Wenkoersatzbürste with 8.5cm and 7.5cm in diameter with no.