The suction cup addition is an accessory compatible only with SLAB TRANS HEAVY DUTY N (Ref. 18982), SLIM EASY TRANS PLUS (Ref.18976) and SLAB TRANS MINI (Ref. 18983). The suction cup can be fixed to any type of surface without leaving a mark on the part. Its use allows the suction cups to be replaced while maintaining the original maximum load capacity of the transporter at all times.