ITEM NAME:for DJI Spark Propeller Fixation / Blade Holder / Fixer B6L4 for DJI Spark Propeller Fixation / Blade Holder / Fixer B6L4 product name:Propeller retainer colour:Black size:7.2x7.2x0.6cm Material:Plastic 100% new high quality Package Contents:1x for DJI Spark Blade Holder / Fixer. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.