这是一组细线纹身图案，画着一把挂锁和一把古典钥匙，用干净的黑色轮廓线绘制在米白色纸上。挂锁有锁孔和三道小小的火花线，带圆环的钥匙也有各自的火花线，整体线条纤细均匀。你可以更换图案、线条粗细或墨色，也可以按自己的位置来安排。

A tattoo stencil reference sheet on plain warm white paper showing a matching pair of small fine-line tattoo designs for the sides of fingers, set side by side with wide empty space between and around them. Left: a small padlock in clean black outline, a rounded rectangular body with a curved shackle on top and a keyhole made of a small circle with a short tapered slot. Right: a small antique key in clean black outline, with an open round bow containing a tiny inner circle, a straight slim shaft, and a bit with two square notches at the end. Both are drawn upright, long and narrow so they fit the side of a finger, and are about the same height. The lock has a small hairline spark of three tiny dashes at its upper right and the key has the same three dashes at its lower left, so the two read as a set. Use one uniform thin-to-medium black line weight, round line ends, no shading, no fill, no hatching, no gradient, no drop shadow, no text, and no hearts. Every gap between lines is open and generous enough to survive on skin. Soft even lighting, flat and graphic, with no hands or skin shown.