These tips are designed for use with the power adaptor lead Maplin Order Code AQ81C. A variety of tips are available to fit almost any application & the plugs can be inserted in to the lead either way round to make the centre positive or negative to suit the equipment being powered. The range covers almost all power sockets found on personal stereos toys games desktop calculators etc. Please see the table below for the sizes available. Order Code Type Size AQ86TC3 x 1mm power AQ87UD5 x 2.1mm power AQ88VE5.5 x 2.1mm power AQ89WF5 x 2.5mm power AQ90XG5.5 x 2.5mm power AQ91YH3.5 x 1.35mm power AR22YI4 x 1.7mm power AR23AJ4.75 x 1.75mm power AR26DP5.5 x 2.8 power AR27EQ6.3 x 3mm power AR28FR7 x 1mm power AR29GS2.5 x 0.75mm miniature style power plug