Material:Plastic
Package includes: 
6 x Universal Airplane Support  For 1:400 Airplane Aircraft  Model (3big+3Small) (For AC PH JC GJ BB AV )

Size Small For  (B737、A310、A319、A320、A321、A330、B787、C919)

Size Big For (B787、A330、A340、A350、B747、B777、A380)

*Most 1:400 Aircraft model's mounting hole size is 2.3-2.7mm. If the stand  not fit the models perfectly.  you could use a knife to peer the tip of the stand to match the model's mounting hole better.Thanks