Detailed Selling Lead Description
Brand: ZIPPA
Model: ZP/BY09-8
Nickel iron 
Open angle: 105 ° 
Cup size: 35mm deep: 12mm 
Cup hole size: 45mm, 48mm, 52mm 
Installation Cup Size: wooden teeth ф3.5 × 6mm; plastic nut 8mm/10mm 
1, to open than other similar products should be quick easy to use 2, behind closed doors about two seconds in the automatic homing