4 Pcs Laptop Black Antiskid Cool Ball Cooler Stand Pad / for 2 laptops/ USA MADE. I MADE THESE RIGHT HERE IN USA/ NOT PLASTIC YOU CAN JUMP ON THESE AND WONT BREAK/ I GOT TIRED OF WAITING A MONTH TO GET FROM CHINA, SO I WAS MESSING AROUND AND MADE SOME MYSELF/THESE WILL INCREASE THE LIFE OF YOUR COMPUTER/ I HAVE USED FOR YEARS/ MY DELL D630 I BOUGHT 12 YEARS AGO IS STILL RUNNING, BECAUSE I USED THESE AND NEVER HEATED UP MY COMPUTER, THEY REALLY WORK. THESE LITTLE BALLS LIFT LAPTOP OFF A SURFACE SO IT IS ABLE TO SUCK IN COOL AIR SO LAPTOP STAYS COOLER. I ALWAYS SEE PEOPLE WITH LAPTOPS ON THEIR BED, OR ON A FLAT SURFACE, THIS IS THE WORST THING YOU CAN DO WITH A LAPTOP, IT BLOCKS THE COOLING VENTS AND HEATS UP. THEY SELL OTHERS SOME WITH MAGNETS, THAT IS THE LAST THING YOU WANT TO DO IS HAVE MAGNETS UNDER YOUR LAPOP TO MAGNATISE PARTS.IF THEY SELL THATS GREAT IF NOT THATS OK I WILL HAVE ENOUGH TO LAST ME A LIFETIME. A FAN IS ALWAYS BETTER BUT I DONT CARRY A FAN WITH ME ALL THE TIME, SO THESE WORK OUT PERFECT/ MINE ARE A LITTLE MORE EXPENSIVE I CANT COMPETE WITH CHINA, BUT MINE WILL LAST TRY THEM, THANKS