AEM-23-208Fits 2.563 to 3.5 inch (65 to 89 millimeter) hose diametersSecures with 8 millimeter hex nut t-bolt or flathead screwdriver1/2 inch wide bandsHeavy-duty stainless steel constructionAEM hose clamps are designed to secure coupler connections to air intake tubes with a t-bolt. This hose clamp kit contains 6 stainless steel hose clamps.