The product is a set of SU carburettors designed for Jaguar MK2 and S-Type 3.4/3.8 twin engines. Made in the United Kingdom, these carburettors feature a 1 3/4" size and electric choke type. Although the seller does not offer a warranty, these high-quality carburettors are a reliable choice for classic Jaguar vehicles looking for improved air and fuel delivery efficiency.