Picture hanging device

A marking device, comprising:

• a main body portion having a target side configured to be placed against a target surface and a user side configured to face a user;
• a first arm pivotably connected to the main body portion, the first arm including a first marker configured to mark the target surface;
• and
• a second arm pivotably connected to the main body portion, the second arm including a second marker configured to mark the target surface;
• wherein the first marker is disposed on a first slide member which is slidable along the first arm and wherein the second marker is disposed on a second slide member which is slidable along the second arm.

A marking device, comprising:

• a main body portion having a target side configured to be placed against a target surface and a user side configured to face a user;
• a first arm connected to the main body portion, the first arm having a first slide member which is slidable along a portion of the first arm;
• a second arm connected to the main body portion, the second arm having a second slide member which is slidable along a portion the second arm;
• a first marker disposed on the first slide member and configured to selectively mark the target surface;
• a second marker disposed on the second slide member and configured to selectively mark the target surface;
• a first hook disposed on the first slide member at a first location corresponding to the first marker;
• and
• a second hook disposed on the second slide member at a second location corresponding to the second marker.