Pearl twin pedal, double chain drive. - Brand: Pearl - Accessories: Case, all parts - Type: Twin pedal - Construction: Chain drive Thank you for viewing. - I am a beginner drummer who only plays, so I cannot answer technical or physical inquiries regarding the gear. - The appearance is quite worn, but the rigidity is sufficient, and I believe it will continue to withstand normal use. - The included case is made by TAMA, but it is considerably worn and torn inside and out. Please understand that it only meets the minimum specifications as a "container." - No claims and no returns. - Please refrain from price negotiations. Thank you.