They have a large magnet running down the stem of this holder. That way it will stick to the metal surface and the bushings will be in place. Thus the ends of the sockets are kept closed. Pretty good magnet holding the largest of the sockets. So I think it's a good buy.
TANCHEN 6PCS Socket Organizer Trays - Black SAE & Red Metric, 1/4, 3/8, & 1/2-Inch Drive Socket Holders
23 Review
ABN Magnetic Tool Tray Set - 2 Pack Rectangle And Round Steel Mechanics Magnetic Parts Trays To Store And Organize
11 Review
Orbital sander BOSCH GEX 125-1 AE eccentric
18 Review
Hammer drill BOSCH GBH 2-28 (0.611.267.500), without battery, 880 W
20 Review
Reversible Mi 16-in-1 Ratchet Screwdriver
21 Review
Xiaomi Mijia Ratchet Screwdriver 16 in 1 Screwdriver with Interchangeable Bits, 10 pcs, Black
22 Review
Bit and socket set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
46 Review
Xiaomi Mi x Mijia Wiha Precision Screwdriver Set (DZN4000CN), 25 pcs
34 Review