Altaïr fights back the urge to chuckle at the mention of it being an old design, "I am fairly familiar with other versions of similar." He replied idly, examining the mechanisms with rapt fascination. He's always had an interest in what others did in variation to improve the groundwork he'd laid down.

"I should greet you properly first, before we exchange equipment. Safety and peace, Sister." He nods to her ring, pulling his sleeve up enough to get at the buckles of his own hidden blade. It's a simple affair, steel housing around a thin blade with leather straps making up a low profile. He takes it off with practiced ease, offering it to her.

"You can hold on to mine as collateral, hm? You can think of what you would like for winning the race while I try yours."