(S651H) Stubbs proudly designed the original tread-in markers over 30 years ago and they are still a best seller. Now we introduce a hook on version ideally suited to the manege. The clever sloping top of this product easily fits fence rails up to 55mm thick, keeping the letter vertical and highly wind resistant due to its weighty steel design. Stubbyfine coated and constructed to the usual high quality of our arena markers, but without the need to screw them on! For 20m x 40m arena - Letters ABCEFHKM in small set. Supplementary set is letters - RSVP. Standard set contains both small set & supplementary set. Ref: UTBZ2635