Package Content: You will receive 1pcs 100mm rubber coupling with 2 hose clips and 1pcs black screwdriver. Please note: refer to our size chart and place your order according to your actual measurements Premium Materials: The rubber connector is made of high-precision rubber material, with strong resilience, not easy to deform, able to withstand long-term use, and can maintain its excellent sealing performance in various environments Noise reduction: The 100mm flexible rubber coupling can absorb vibrations and airflow through the ventilation pipe and thus reduce noise. It is ideal for use in living and working areas where a quiet environment is important Easy installation: Installing the 100mm noise-reducing sleeve coupling is simple and straightforward. Simply insert the air vent into the rubber connection and secure it at both ends with the stainless steel clips provided Good after-Sales Service: Each of our rubber coupling for soil drain repair have unparalleled quality and reliable services. If you have any problems, please come to me, Manufacturer: Cjytdkj