The LANXB1720 is a 1-1/4" round female to 1-1/8" hex (with locking groove) adapter.
{"shipping_group":"Shipping Group|ESTIMATED_SMALL_SIZE^LANKOTA_DROP_SHIP_SURCHARGE","sku":"SKU|LANXB1720","part_cdk_id":"Part ID|16191499","part_cdk_company":"Company|01","part_cdk_division":"Division|01","part_cdk_list_price":"List Price|96.25","part_cdk_branch_code":"Branch Code|99","part_cdk_branch_name":"Branch Name|Fargo FSO","part_cdk_description":"CDK Description|ROUND TO HEX AD","part_cdk_part_number":"Part Number|LANXB1720","part_cdk_part_status":"Part Status|A","part_cdk_vendor_code":"Vendor Code|205551","part_cdk_product_line":"Product Line|AGXXXX","part_cdk_vendor_name":"Vendor Name|LANKOTA INC","spec_notab_51_weight":"Weight|5 Pound","spec_notab_31_width":"Width|5 Inch","spec_notab_21_length":"Length|9 Inch","spec_notab_41_height":"Height|5 Inch"}