Height adjust when you want to drop down or higher it. To make it safe and firm, the silver receiver with 50mm ball is heavy duty. 3500kg bearing -horizontal, 200kg- vertical. a nice choice for you. This is an adapter for 2inch tubes. outer size is 50mm x 50mm. You can use as drop plate or up raise plate. Note: only Fit these US STYLE TOWBAR of fits 85*45mm from us. not fit UK standard towbar of 90*40mm. Note：lock and towbar receiver, ball is not included, please buy separately.
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