I've been looking for in order to find these suppliers. Everywhere there are only rectangular caps and often totally overpriced. All Berliner hardware stores, OBI, Hornbach, Hellweg, plants Kölle just dead trousers and disinterest. In plants Kölle 7 scruffy, galvanized caps were present for sick three times the price, no thanks, to deliver ??. The delivery by pro shop was within 1.5 days here. The quality is superior, stainless steel. Even small stainless steel screws are included. Accidentally had slipped at the 55 caps 80mm a 70mm cap between them, can happen. The cap was a replenished easily. I am very satisfied, great quality, reasonable price, excellent service. Thank you.