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Bosch GCL 2-15 Green Self Levelling Laser level and GLM500 Laser Measure Kit | Laser Levels
Laser Distance Meter 50M/165ft, RockSeed IP54 Laser Measure with 2 Bubble Levels,Portable Laser Rangefinder Digital Distance Meter with 4 Line LCD Display and Bigger Clear Backlight : Amazon.co.uk: DIY & Tools