It's just a box with a very poor locking mechanism. I'm pretty sure turning the knob any harder will likely break it (or at least break the mechanism). I think with a screwdriver you can just pry it open or bend the corner just enough to see inside. I didn't believe the low star reviews but now I certainly do.
π Secure Your Valuables with the Diversion Book Safe - Combination Lock, Hidden Metal Lock Box - 9 1/2" x 6" x 2 1/3" - New York
22 Review
Kenmore & LG 4681EA2001T Washer Drain Pump Motor By Beaquicy - OEM Replacement Part
20 Review
KYODOLED 10.5Inch Diversion Book Safe With Combination Lock, Extra Large Safe Secret Hidden Metal Lock Box,Money Hiding Box,Collection Box,10.5" X 7.8" X 2.6" Black Extra Large
46 Review
Ambergron Stackable Egg Holder Organizers For Kitchen, Refrigerator, Freezer - Set Of 2 Clear Plastic Trays With Lids For BPA-Free Storage Of Up To 12 Eggs On Fridge, Pantry, And Countertop
23 Review
Clear Disposable Emergency Rain Poncho with Hood for Adults - 20 Pack
8 Review
Lingito Rain Poncho: Buy 5, 10, or π§οΈ 15 Packs - Disposable Emergency Rain Ponchos for Ultimate Protection
8 Review
π AquaPod Kit 2.0: BPA-Free & Made in USA! Emergency Water Storage Container, Hurricane Survival (65 gallons) - Great for Larger Tubs!
8 Review
Be Prepared For Anything With Quakehold! 70500 Evacuation Essentials Kit
9 Review