Jahn Piano Spider 3 pcs

Before I bought these rollers I read some of the comments. The only criticism that remained is that the piano can roll freely on the spider's support platform which risks damaging the lacquer on the leggs when moving and hitting the spider's side walls. Hence the protective (adhesive) padding included in the package.... Other flatter spider solutions from Jahn have an immobilizing gutter shaped carry platform but feature much smaller wheels ... less usefull on floors with are not 100% flat.. I got the best of both worlds by cutting three custom wooden wedges that immobilize the wheels flush to one sideof the spider's carry platform, the piano leggs themselves are in that case perfectly centered within the spider. On my piano (and most grand piano's) the pivoting wheels are positioned slightly off center on the piano leggs, hence the need to position the piano's wheels off center on the spider platform in order to fit the leggs inside the spider's leggs. I would stronly suggest jahn to include rubber/wooden locking wedges to come to the perfect mobility solution... this would add the missing 5th star of this the review ;-)