17 Flooring materials, namely sheet materials, mats, panels and self-adhesive mats, discs, panels and strips made wholly or predominantly of plastics (term considered too vague by the International Bureau - Rule 13 (2) (b) of the Regulations); non-slip pads (term considered too vague by the International Bureau - Rule 13 (2) (b) of the Regulations); adhesive anti-slip tape.