Gks perfekt container dolly 5-14129 – 26,000 lb. Capacity the t5-14129 container dolly 5-14129 is a 12 metric ton capacity skate that fits into two feet of an iso container and enables safe movement of the container. Gks container dollies are comprised of two separate dollies: a leading steerable tl-c dolly for effortless navigation, and a f-c dolly that provides container dollies with the ability to transport up to 52,800 pounds. Our container dollies are equipped with locks that securely connect container dollies with intermodal, or iso, containers for safe, efficient and secure transport.