Penn-Plax Grass Hideaway - Available in 2 sizes

Small Size:

• 4 inches wide x 4 inches deep x 3 inches tall.
• Front Opening 1 inch x 1 inch
• Back Opening 0.75 inches x .75 inches 

Large Size:

• 6 inches wide x 6 inches deep x 5.5 inches tall.
• Front Opening 2.25 inches x 2.25 inches.
• Back opening 1.5 inches x 1.5 inches