95 % you can fix to any sofa or bed but if they don't go then you need to change the socket (inserts) or drill. take the old socket out and put the new socket into the sofa or bed and then slide the castors into inserts (socket ).
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GIANXI Summer Outdoor Rollaway Bed Single Bed Simple Office Rollaway Chair Nap Bed Cotton Padded Recliner Accompanying Cot
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Baby rocking chair to put the baby to sleep Artifact rocking chair can sit and lie down cradle bed recliner movable crib
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Bed Backrest Support Bed Chair - Adjustable Bed Back Rest Sit Up Reading Seating Chair, 6 Degree Sit-up Stand Beach Chair
Aliexpress UK
Advanced Patient Lift Transfer Chair Versatile Bedside Commode Silent Transport rolling chair Lift Aid Bathroom Shower Chair
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Folding Sofa Bed, Convertible Sleeper Chair with Pillow Foldable Matress, Portable Fold Out Chair Bed Comfy Floor Sofa Lounge
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Pink Aesthetic Chair Cosmetic Spa Bed Electric Facial Chair Synthetic Leather Beauty Salon Lash Massage Bed
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WL puff sofa bed dual-purpose retractable folding bed multi-functional small apartment living room single sofa chair
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Baby Bassinet Crib Newborn Electric Cradle Rocking Chair 3 Timer 5 Swing Model Babies Bed Height Adjustable Bedside Travel Crib
Aliexpress UK