Vista Engineering - STW-STST - Sliding Two Way Tie - 200mm-230mm - BOX/250General: The item you are purchasing is for 1x Box of 250 Sliding Two Way Ties @ 200mm 230mm (STW STST) Description & Application: Vista Engineering's Sliding Two Way Tie is used in conjunction with the sliding anchor stems. This tie 'catches' both the inner or the outer wall. Sizes are measured as the overall length of the tie. Design Sliding two way ties used in conjunction with the sliding anchor stems. This tie 'catches' both the inner or the