The “Lug connector” is used to join the cubes together around the perimeter of the dock or inside the perimeter of your “Drive on” structure (Premium Version). On the edges it is more convenient to use a lug connector than the conventional pin that we use within the structure. It requires a Hex tool to properly tighten it. One one side of the dock spacers will be required. Dimensions ( H x L x W ) 12.0 x 5.0 x 5.0 cm / 4.72“ x 1.96“ x 1.96“ Resistant to frost and summer heat All our products are TUV tested and ISO 9001 certified & CE certified Made in Italy & Germany