METAL BUILD Force Impulse - Destiny Impulse Compatible Joint This joint allows you to attach the backpacks of Destiny, Freedom, Justice, and Strike Freedom to the back of the Metal Build Impulse. Only the connection parts are for sale. These parts are made using an FDM (fused deposition modeling) 3D printer. The material is ABS. Please understand that due to the nature of 3D printing, layer lines and slight distortions on fine surfaces may occur. Please purchase only if you accept that these are handmade items. The material is more durable than it appears. Price negotiations are generally not accepted. Series: Mobile Suit Gundam SEED Series