Owlet sock 2

Used owlet sock set, comes with sensor, cables, charging dock, 3 socks and manual. The size 1 sock was used for a short period so it is gently used. The size 2 and size 3 were used for months at a time so there is discoloration of the strap but they are not dirty (everything has been washed and cleaned). The size 3 sock does have some stretching of the fabric near where the sensor was placed (see picture).