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 minor surface imperfections may occur. These are handmade, so please consider this before purchasing. The material is more durable than it appears. Negotiations for price reduction are generally not accepted. Series: Mobile Suit Gundam SEED Series