Pacemakers and defibrillators can be sensitive to strong magnetic fields. Usually surprise is an issue--they can jump out of your hands and snap together from a surprising distance before you realize what is happening.
eBay
MOC Pneumatic Kits Technical Parts Cylinders Air Pump Push Rod Switch Piston Air Pipe Air Building Blocks 47225 19478 4697 8800
Aliexpress UK
Grade: NB10 (Bonded Neodymium). Samarium Cobalt. Neodymium Blocks. Neodymium Disks / Rods. Neodymium Cubes. Neodymium Rings. Neodymium Spheres. Neodymium - Self Adhesive.
eBay
HIWIN Original Linear Guide Rail Slider Block HGH15CA HGH20CA HGH20HA HGH25CA HGH25HA Alloy Steel For 3D Printer CNC parts
Aliexpress UK
Super-strong 95kg Pull. A single F335NS is so strong that it will wipe data from hard drives and is commonly used in large scale engineering projects such as wind turbines. Each magnet has a triple coating of nickel, copper and nickel again to reduce corrosion.
eBay
2-6" Hook and Loop Hat Hand Sanding Block Sandpaper PU Foam Hand Pad Polishing Pad for Woodworking Manual Polishing Tools
Aliexpress UK
Usually surprise is an issue--they can jump out of your hands and snap together from a surprising distance before you realize what is happening. They are strong enough that they can fly into each other or to a piece of iron or steel with such velocity that they can break and send sharp 'shrapnel' flying about!
eBay
MOC Pneumatic Kits Technical Parts Cylinders Air Pump Push Rod Switch Piston Air Pipe Air Building Blocks 47225 19478 4697 8800
Aliexpress UK
.
eBay
Thick Heavy-Duty Plastic Garden Sun Shade Net, Beige - Large Square UV Block, Sunshade Sail for Outdoor Patio and Yard Protectio
Aliexpress UK
When magnetising two Neodymium magnets together, safely slide magnets together to avoid high impacts. These magnets are incredibly strong and never fail to impress. The magnets are coated in four layers of Nickel, Copper and Boron to enhance the lifespan of the magnet and the coating also provides a smooth finish.
eBay
1PCS Connector Terminal Block For Makita 18V Li-ion Battery Charger Adapter Converter BL1815 BL1830 BL1430 Electric Power Tools
Aliexpress UK
These small Neodymium magnets are axially magnetised between the two 10mm x 10mm square faces and provide a maximum pull of 3.5kg. Every magnet has a triple coating of nickel, copper and nickel again to prevent against corrosion.
eBay
60/100/200/400# Diamond Hand Polishing Pads Tile Glass Abrasive Grinding Block Pad Stone Abrasive Sanding Disc Polisher Tools
Aliexpress UK
These rectangular Neodymium magnets are axially magnetised between the two 5mm x 5mm square faces and have many creative uses including model-making, theatre design, furniture making, and exhibitions.
eBay
Grey Sun Shade Sail Waterproof Outdoor Garden Sails Canopy Patio Party Sunscreen Awning 98% UV Block Shade Cloth with Free Rope
Aliexpress UK